Furniture-spring



(No Model.)

M. H. LEARNA'RD.

Furniture Spring. I No.237 ,557.' Patented Feb. 8,1881.

NITED STATES MARTIN H. LEABNARD, OF DANVILLE, ILLINOIS.

FURNITURE-SPRING.

SPECIFICATION forming part of Letters Patent No. 237,557, dated February8, 1881. Application filed December 31, 1880. (No model.)

To all whom it may concern:

Be it known that I, MARTIN H. LEARNARD,

I of Danville, in the county of Vermillion and State of Illinois, haveinvented certain new and useful Improvements in Furniture-Springs and Ido hereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification.

Figure 1 is a perspective view of one of my improved springs detached,and Fig. 2 is a view of a set of my improved springs secured inposition.

Similar letters of reference indicate corresponding parts in bothfigures.

This invention relates to coiled springs for beds and for upholsteringpurposes; and it consists in providing such springs with apeculiarly-shaped base-coil, which shall give thema firm support andprevent them from sagging or tilting over, as will be hereinafter morefully described, and particularly pointed out in the claim.

In the drawings hereto annexed, A represents one of my improved springs,the body of which, B, is of the usual and well-known conical spiralform.

The bottom or base coil, 0, is made rectangular in shape, as shown, andsufficiently large to form a firm and solid support for the spring. Whenthe latter is adjusted in its proper position, as shown in Fig. 2,staples D are driven at the angles of the base-coil, thus precluding anypossibility of its sagging or tilting over, or becoming otherwisedisplaced.

When a suitable number of my improved springs have been adjusted in anarticle of furniture, I prefer to connect the upper coils of eachsection of four springs by coiled springs E, arranged diagonally acrosseach other and hooked or otherwise secured to the upper coils of thesprings A, to which increased stability is thus given withoutinterfering with their elasticity.

I am aware that a furniture-spring having an elongated or ellipticalbase-coil is not new, and such I disclaim. A rectangular base-coil, asherein shown, not only renders a firmer support, but is also capable ofbeing more securely attached by staples driven at its corners.

Having thus described my invention, I claim and desire to secure byLetters Patent of the

